Chemistry · Atomic Structure
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Alpha rays are :
- A
Single negatively charged particles
- B
Single positively charged particles
- C
Double negatively charged particles
- D
Double positively charged particles
Alpha particles have a positive charge and are identical with helium nuclei and consist of two protons and two neutrons. They result from the radioactive decay of heavy elements such as radium, thorium, uranium, and plutonium.
a) Single negatively charged particles: This option suggests that alpha rays are single particles with a negative charge. However, this is not accurate. Alpha particles are made up of two protons and two neutrons, and they have a positive charge.
b) Single positively charged particles: This option is inaccurate. Alpha rays, also known as alpha particles, are composed of two protons and two neutrons. Due to the presence of two protons, they have a double positive charge.
c) Double negatively charged particles: This option is not accurate. Alpha particles are positively charged, not negatively charged.
Alpha particles have a positive charge and are identical with helium nuclei and consist of two protons and two neutrons. They result from the radioactive decay of heavy elements such as radium, thorium, uranium, and plutonium.
Tagged under Chemistry · Atomic Structure · 2002